Bob, I'll do a little research. I have one Type 1 and will make a chaste of the chamber and see and get back when I have time. Seems I remember that in the beginning when the 6.5 machine gun was intorduce the cases had to be oiled and they either opened the chambers up or down sized the ammo. I just wrote to Frank Allan for his input. He just published a huge book an the T38 rifle. riceone.
